(06) Dec 02, Features, Forms & Objects (ag)
Topics addressed in the lecture:
- Gestalt principles of perceptual organization
- Effect of visual context on V1 responses
- Representation of complex patterns in the ventral visual pathway
- V1 and V2 encoding of object-like properties
- Figure-ground segregation
- Synchronization hypothesis
- Perceptual modulation
Examples for question you should be able to answer:
- Neurons in different visual areas along the ventral pathway are selective for increasingly complex visual patterns. For which property of a visual stimulus do the neurons in higher visual areas of the ventral pathway become less selective?
- Explain how the Gestalt principle of “good continuation” could be supported by contextual modulation of receptive fields in primary visual cortex?
Important concepts:
- Perceptual grouping
- Contour integration
- Horizontal connectivity
- Figure-ground segregation
- Binding-by-synchronization
- Visual awareness